摘要
东沟金矿位于西秦岭关子镇—李子园构造带东部。矿体主要赋存于震旦—奥陶系李子园群木其滩组第二岩性段的一套变质火山岩—沉积岩系中,严格受关子镇—元家坪区域韧性剪切带控制,其派生的次级断裂为区内主要的容矿构造。对矿区地球化学特征、金成矿条件及找矿标志进行分析,在金异常内已发现东沟和二黄沟金矿点及数处金矿化点,显示出了良好的找矿前景,矿石元素的共生组合主要为Au、Ag等,Ag、Cu、Sb、Hg、B i均可作Au的找矿指示元素。
The Donggou gold deposit lies in the eastern part of the Guanzizhen-Liziyuan structural belt within West Qinling Mountains. Ore bodies are hosted in Sinian-Ordovician metamorphosed volcanic rocks and sedimentary rocks and controlled strictly by regional duc- tile shear zone, with the second-order fault being the main ore-hosting structure. Based on an analysis of the geochemical characteristics, gold ore-forming conditions and ore-prospecting criteria of the ore district, the author found Donggou and Erhuanggou gold ore spots and several gold mineralized spots within the limits of the anomalies, revealing good ore-prospecting vista. The element association of the ore comprises mainly Au and Ag, and Ag, Cu, Sb, Hg and Bi can serve as indicator elements in ore exploration.
出处
《物探与化探》
CAS
CSCD
北大核心
2009年第3期282-285,共4页
Geophysical and Geochemical Exploration
关键词
地球化学异常
找矿标志
甘肃省东沟金矿
geochemical anomaly
ore-prospecting criteria
Donggou gold deposit in Gansu Province
